Biostar A75MG Manual
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Biostar A75MG Manual

Biostar A75MG Manual

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A75MG UEFI BIOS Manual
UEFI BIOS Setup...................................................................................... 1
1 Main Menu ............................................................................................. 3
2 Advanced Menu...................................................................................... 4
3 Chipset Menu ....................................................................................... 17
4 Boot Menu............................................................................................. 24
5 Security Menu ...................................................................................... 26
6 Performance Menu .............................................................................. 27
7 Exit Menu ............................................................................................. 35
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  • Page 1 A75MG UEFI BIOS Manual UEFI BIOS Setup..................1 1 Main Menu ..................... 3 2 Advanced Menu..................4 3 Chipset Menu ..................17 4 Boot Menu..................... 24 5 Security Menu ..................26 6 Performance Menu ................27 7 Exit Menu ..................... 35...

  • Page 2: Uefi Bios Setup

    A75MG UEFI BIOS Manual UEFI BIOS Setup Introduction The purpose of this manual is to describe the settings in the AMI UEFI BIOS Setup program on this motherboard. The Setup program allows users to modify the basic system configuration and save these settings to NVRAM.

  • Page 3: Supported Cpus

    A75MG UEFI BIOS Manual Supported CPUs This AMI UEFI BIOS supports AMD CPU. Using Setup When starting up the computer, press <Del> during the Power-On Self-Test (POST) to enter the UEFI BIOS setup utility. In the UEFI BIOS setup utility, you will see...
  • Page 4 A75MG UEFI BIOS Manual 1 Main Menu Once you enter AMI UEFI BIOS Setup Utility, the Main Menu will appear on the screen providing an overview of the basic system information. BIOS Information Shows system information including UEFI BIOS version, Project Code, Model Name, Build Date, etc.

  • Page 5: Advanced Menu

    A75MG UEFI BIOS Manual 2 Advanced Menu The Advanced Menu allows you to configure the settings of CPU, Super I/O, Power Management, and other system devices. Notice Beware of that setting inappropriate values in items of this menu may cause system to malfunction.
  • Page 6 A75MG UEFI BIOS Manual PCI ROM Priority In case of multiple option ROMs (Legacy and EFI Compatible), this item specifies what PCI Option ROM to launch Options: Legacy ROM (Default) / EFI Compatible ROM PCI Latency Timer This item sets the value to be programmed into PCI Latency Timer Register.
  • Page 7 A75MG UEFI BIOS Manual Maximum Payload This item sets Maximum Payload of PCI Express Device or allows System BIOS to select the value. Options: Auto (Default) / 128 Bytes / 256 Bytes / 512 Bytes / 1024 Bytes / 2048...
  • Page 8 A75MG UEFI BIOS Manual S3 Video Repost This item allows you to enable or disable S3 Video Repost. Options: Disabled (Default) / Enabled EuP Control When EuP is enabled, the system will meet EuP requirement. Options: Disabled (Default) / Enabled PME Wake up from S5 The item enables the system to wake from S5 using PME event.

  • Page 9: Cpu Configuration

    A75MG UEFI BIOS Manual Stroke Keys Selected This item will show only when Keyboard PowerOn is set “Stroke Key.” Options: Wake Key (Default) / Power Key / Ctrl+F1 / Ctrl+F2 / Ctrl+F3 / Ctrl +F4 / Ctrl+F5 / Ctrl+F6 Specific Key Enter This item will show only when Keyboard PowerOn is set “Specific Key.”...
  • Page 10 A75MG UEFI BIOS Manual Limit CPUID Maximum When the computer is booted up, the operating system executes the CPUID instruction to identify the processor and its capabilities. Before it can do so, it must first query the processor to find out the highest input value CPUID recognizes. This determines the kind of basic information CPUID can provide the operating system.

  • Page 11: Sata Configuration

    A75MG UEFI BIOS Manual CPU Information This item shows CPU Information SATA Configuration The BIOS will automatically detect the presence of SATA devices. There is a sub-menu for each SATA device. Select a device and press <Enter> to enter the...
  • Page 12 A75MG UEFI BIOS Manual SMART FAN Control CPU Smart FAN This item allows you to control the CPU Smart Fan function. Options: Disabled (Default) / Auto / 4Pin / 3Pin CPU FAN Calibrate Press [ENTER] to calibrate CPU FAN. Control Mode This item provides several operation modes of the fan.

  • Page 13: Usb Configuration

    A75MG UEFI BIOS Manual Fan Ctrl Start Value This item sets CPU FAN Start Speed Value. Options: 50 (Default) Fan Ctrl Sensitive The bigger the numeral is, the higher the FAN speed is. Options: 30 (Default) USB Configuration Legacy USB Support This item determines if the BIOS should provide legacy support for USB devices like the keyboard, mouse, and USB drive.

  • Page 14: Super Io Configuration

    A75MG UEFI BIOS Manual XHCI Hand-Off This is a workaround for OSes without XHCI hand-off support. The XHCI ownership change should be claimed by XHCI driver. Options: Enabled (Default) / Disabled EHCI Hand-Off This is a workaround for OSes without EHCI hand-off support. The EHCI ownership change should be claimed by EHCI driver.
  • Page 15 A75MG UEFI BIOS Manual Serial Port 1 Configuration Serial Port This item enables or disables Serial Port (COM). Options: Enabled (Default) / Disabled Change Settings This item selects an optimal setting for Super IO device. Options: Auto (Default) / IO=3F8h; IRQ=4 / IO=3F8h; IRQ=3, 4, 5, 6, 7, 9, 10, 11, 12 / IO=2F8h;...
  • Page 16 A75MG UEFI BIOS Manual Parallel Port Configuration Parallel Port This item enables or disables Parallel Port (LPT/LPTE). Options: Enabled (Default) / Disabled Change Settings This item allows you to select an optimal setting for Super IO device. Options: Auto (Default) / IO=378h; IRQ=5 / IO=378h; IRQ=5, 6, 7, 9, 10, 11, 12 / IO=278h;...
  • Page 17 A75MG UEFI BIOS Manual H/W Monitor PWM Processor Hot This item allows you to set up the PWM processor hot function. Options: Enabled (Default) / Disabled Shutdown Temperature This item allows you to set up the CPU shutdown Temperature. Options:...

  • Page 18: Chipset Menu

    A75MG UEFI BIOS Manual 3 Chipset Menu This section describes configuring the PCI bus system. PCI, or Personal Computer Interconnect, is a system which allows I/O devices to operate at speeds nearing the speed of the CPU itself uses when communicating with its own special components.

  • Page 19: North Bridge

    A75MG UEFI BIOS Manual Launch PXE OpROM This item enables/disables Boot Option for Legacy Network Devices. Options: Disabled (Default) / Enabled Launch Storage OpROM This item enables/disables Boot Option for Legacy Mass Storage Devices with Option ROM. Options: Enabled (Default) / Disabled Realtek PCIE NIC This item enables/disables Realtek PCIE NIC.
  • Page 20 A75MG UEFI BIOS Manual FB Location This item allows you to select FB location. Options: Above 4G (Default) / Below 4G GFX Configuration PSPP Policy This item allows you to set PCIe speed power policy. Options: Balanced-High (Default) / Disabled / Performance / Balanced-Low /...

  • Page 21: South Bridge Configuration

    A75MG UEFI BIOS Manual Bank Interleaving Bank Interleaving is an advanced chipset technique used to improve memory performance. Memory interleaving increases bandwidth by allowing simultaneous access to more than one piece of memory. Options: Enabled (Default) / Disabled Channel Interleaving This item allows you to control the DDR3 dual-channel function.
  • Page 22 A75MG UEFI BIOS Manual SB SATA Configuration OnChip SATA Channel This option allows you to enable the on-chip Serial ATA. Options: Enabled (Default) / Disabled OnChip SATA Type This option allows you to select the on-chip Serial ATA operation mode.
  • Page 23 A75MG UEFI BIOS Manual OHCI HC (Bus 0 Dev 18/19/20 Fn 0/5) This item allows you to control OHCI host controller. (USB 1.1 Device) Options: Enabled (Default) / Disabled EHCI HC (Bus 0 Dev 18/19 Fn 2) This item allows you to control EHCI host controller. (USB 2.0 Device)
  • Page 24 A75MG UEFI BIOS Manual SB Azalia Audio Configuration HD Audio Azalia Device This item allows you to control the HD audio device. Options: Enabled (Default) / Auto / Disabled SB Clock Spread Spectrum This item allows you to set SB Clock Spread Spectrum.

  • Page 25: Setup Prompt Timeout

    A75MG UEFI BIOS Manual 4 Boot Menu This menu allows you to setup the system boot options. Setup Prompt Timeout This item sets number of seconds to wait for setup activation key. Options: 2 (Default) Bootup NumLock State This item selects the keyboard NumLock state.
  • Page 26 A75MG UEFI BIOS Manual GateA20 Active Upon Request – FA20 can be disabled using BIOS services. Always – do not allow disabling GA20; this option is useful when any RT code is executed above 1MB Options: Upon Request (Default) / Always Option ROM Messages This item sets the display mode for option ROM.

  • Page 27: Security Menu

    A75MG UEFI BIOS Manual 5 Security Menu Administrator Password This item sets Administrator Password. User Password This item sets User Password.

  • Page 28: Performance Menu

    A75MG UEFI BIOS Manual 6 Performance Menu This submenu allows you to change voltage and clock of various devices. (However, we suggest you use the default setting. Changing the voltage and clock improperly may damage the device.) Notice Beware of that setting inappropriate values in items of this menu may cause system to malfunction.
  • Page 29 A75MG UEFI BIOS Manual P-States Configuration Custom P-States This item tells BIOS whether to use the setup option below this to configure the P-States, or whether to configure the P-States automatically. Options: Disabled (Default) / Enabled Note: The following items appear only when you set the Custom P-State item to [Enabled] Core FID This item sets the frequency to use for Core P-State selected.

  • Page 30: Over Voltage Configuration

    A75MG UEFI BIOS Manual Over Voltage Configuration DDR Memory Over Voltage This item allows you to select DDR Memory Voltage Control. DRAM Timing Configuration...
  • Page 31 A75MG UEFI BIOS Manual MCT Timing Mode This item allows you to select the DRAM Frequency programming method. If Auto, the DRAM speed will be based on SPDs. If Limit, the DRAM speed will not exceed the specified value. If Manual, the DRAM speed specified will be programmed regardless of SPD.
  • Page 32 A75MG UEFI BIOS Manual TRAS Options: Auto (Default) / 15~36 CLK Options: Auto (Default) / 20~49 CLK Options: Auto (Default) / 5~8 / 10 / 12 / 14 / 16 CLK TRRD Options: Auto (Default) / 4~8 CLK TRWTTO Options: Auto (Default) / 3~17 CLK...
  • Page 33 A75MG UEFI BIOS Manual MCT Configuration Bank Interleaving Bank Interleaving is an advanced chipset technique used to improve memory performance. Memory interleaving increases bandwidth by allowing simultaneous access to more than one piece of memory. Options: Auto (Default) / Disabled Channel Interleaving This item allows you to control the DDR2 dual-channel function.
  • Page 34 A75MG UEFI BIOS Manual MemClk Tristate C3/ATLVID This item enables or disables the MemClk Tristate function in C3 Mode. Options: Disable Link (Default) / Enabled Memory Hole Remapping This item allows you to enable or disable the remapping of the overlapped PCI memory above the total physical memory.
  • Page 35 A75MG UEFI BIOS Manual DDR3_A1/B1 These items display SPD information of DDR3 memory.

  • Page 36: Save Changes And Reset

    A75MG UEFI BIOS Manual 7 Exit Menu This menu allows you to load the optimal default settings, and save or discard the changes to the BIOS items. Save Changes and Reset Reset the system after saving the changes. Discard Changes and Exit Abandon all changes made during the current session and exit setup.

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